How do you teach an AI the difference between a PET bottle and an HDPE bottle? The Bosch team around Sidharta Andalam combined several sources of information to increase the accuracy of their system. Camera images and terahertz sensor signals are combined to decide if an item should get picked out of a waste stream. To get the necessary labeled training data, the engineers used the experience of trained workers at a recycling plant in Singapore. If you haven’t listened to the previous full episode about this topic, we recommend starting there for additional context. More Bosch podcasts: Beyond Bosch: https://podtail.com/de/podcast/beyond-bosch/